Patent EP-0259006-A1 (EP)
Inventor: ROBERTS CHARLES WILLIAM MINNES
IPC: A61N1/34
Filed: 1987-07-31
Abstract: A biomedical electrode (10) adapted to be applied to a body and adapted to be electrically and mechanically connected to an electrical lead wire (14). The electrode (10) contains a protective, electrically insulative web (12) and an electrically conductive adhesive (20 or 24) adjacent one side of the web (12) which is adapted to be oriented to the body. A release liner (18) is placed between the web (12) and the electrically conductive adhesive (20-24) to facilitate removal and placement of an electrical lead wire (14). The biomedical electrode (10) may have a first layer of pressure sensitive adhesive (16) applied between the web (12) and the release liner (18). A second layer of adhesive (24) which is electrically conductive may be positioned adjacent the release liner (18) opposite from the web (12). An electrically conductive film (22) may be positioned adjacent the second layer of adhesive (24) opposite the release liner and finally a third layer of adhesive (24) which is electrically conductive may be positioned adjacent the electrically conductive film (22) opposite the second layer (24) of conductive adhesive which is adapted to be applied to a body. 
     Alternatively, a biomedical electrode (10) is provided and is adapted to be applied to a body and adapted to be electrically and mechanically connected to an electrical lead wire (14). The electrode (10) contains a protective, electrically insulative web (12) and an adhesive (16) adjacent one side of the web (12) which is adapted to be oriented to the body. A release liner (18) is placed between the web (12) next to adhesive (16) to facilitate removal and placement of an electrical lead wire (14). An electrically conductive film (22) is positioned adjacent the adhesive (16) opposite the release liner (18). Finally, another layer of adhesive (24) which is electrically conductive is positioned adjacent the electrically conductive film   (22) opposite the layer (16) of adhesive, which electrically conductive adhesive (24) is adapted to be applied to a body. Alternatively, the electrode (10) has a metallic coating (34) applied to the bottom side of a protective, electrically insulative web (32). A release liner (18) separates the metallic coating (34) of the protective web (32) from an electrically conductive adhesive (24) which is adapted to be applied to a body. 
     Alternatively, the biomedical electrode (110), adapted to be applied to a body (134), has a backing material (116), preferably foam, having an aperture (l20). A protective web (112) at least partially secured to the backing material (116) covers the aperture (120). A removeable liner (118) is positioned between the protective web (112) and the backing material (116). An electrically conductive adhesive (128) is positioned adjacent the backing material (116) on the opposite side from the protective web (112). A second removeable release liner (130) is positioned adjacent the electrically conductive adhesive (128) opposite from the backing material (116). A lead wire (122) having a conductive portion (124) is insertable under the protective web (112) to be secured there upon the removal of the release liner (118), by the protective web (112) and the electrically conductive adhesive (128). A bottom release liner (130) may be removed and the biomedical electrode (110) may be secured to a body (134). The conductive portion (124) of the lead wire (122) should be silver or silver plated and preferably subjected to chloride treatment.